Dickerman Hollister, MD
NPI 1063420669 · Medical Oncology Physician · Greenwich, CT
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dickerman Hollister, MD is a Medical Oncology Physician provider in Greenwich, CT (NPI 1063420669).
Provider details
- NPI number
- 1063420669
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 022791 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is Dickerman Hollister's NPI number?
- Dickerman Hollister's National Provider Identifier (NPI) is 1063420669, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dickerman Hollister's specialty?
- Dickerman Hollister is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Dickerman Hollister located?
- Dickerman Hollister's practice location on file with NPPES is 77 Lafayette Pl, Greenwich, CT 06830-5426.
- What is Dickerman Hollister's phone number?
- The practice phone number listed in the NPPES registry for Dickerman Hollister is (203) 863-3737.
- Does Dickerman Hollister accept Medicare?
- Dickerman Hollister is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dickerman Hollister's NPI active?
- Yes — Dickerman Hollister's NPI (1063420669) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.